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A high-contrast keyboard for the visually impaired

Clevy Contrast Keyboard 3

Clevy Contrast Keyboard 3

The Clevy Contrast Keyboard is a durable mechanical keyboard designed with contrasting colors to guide people with a visual impairment. Paired with our assistive add-ons, the Clevy Contrast Keyboard is perfect for adults who also have motor impairment issues. This version includes wired and wireless connection in one.

Wired and Wireless

The Clevy Keyboard 3 offers USB & Bluetooth connectivity: wired and wireless in one. Watch the video to learn how to switch between them.

Example of ABCDE Layout – US-International – Lowercase

New version, new features

Other than updated connectivity, we have included other new features in this version:

Features

Key & Character Size

Characters up to 4x bigger than standard keyboards, enhancing visibility and ease of use. The keyboard maintains a standard size.

Construction & Durability

Constructed with a steel plate and equipped with high-quality ALPS switches, the Clevy Keyboard is built for over 50 million keystrokes, ensuring durability and a consistent feel.

Less is More

Vertical key arrangement improves hand positioning and simplifies the structure. The keyboard also has less function keys than a standard keyboard, focusing only on essential keys. The keyboard contains 67 keys.

Extra Clear Font

The keyboard features large, bold Arial Black letters for maximum readability. After extensive research, this font proved to be the most effective font for the visually impaired.

Enhanced Visual Focus

This Keyboard uses alternating black and white keycaps to enhance visual focus and emphasize the letters. By shifting the visual focal point to the letters themselves, the keyboard offers improved orientation and readability.

 

Key Repeat Switch

The Key Repeat switch on the back of the keyboard lets you enable or disable repeated characters when holding down a key. This hardware solution overrides any software exceptions on your device, making it ideal for people who need guidance with their motor skills.

Spill-proof

Designed to channel spilled liquids away from internal components, thus protecting the electronics and extending the keyboard’s lifespan.

Reviews

AverageAmazon star 1Amazon star 2Amazon star 3Amazon star 4Amazon star 53.46 reviews
3.4Amazon star 1Amazon star 2Amazon star 3Amazon star 4Amazon star 5
Average6 reviews
Posted on Amazon Amazon
TheiKun’s Mommy profile picture
12 October 2023
Amazon star 1Amazon star 2Amazon star 3Amazon star 4Amazon star 5Verified
Nice but not the Bluetooth one I really like how big this keyboard is. I have a son with autism so this big letters really help. It doesn’t work with certain typing games you can download on App Store but it’s super cute and great. I thought it was the Bluetooth version but sadly I got the wired one so there’s a bunch of wires to connect it to and from my son’s iPad. It is easy to use as well so if you’re looking for a good keyboard for your kiddo this is the one.
Posted on Amazon Amazon
savvy mom profile picture
24 November 2014
Amazon star 1Amazon star 2Amazon star 3Amazon star 4Amazon star 5Verified
I like that it is visually clear I like that it is visually clear, and has the spill protection features. But the metal tray on the bottom makes the keys noisy, it actually rings when you get to typing fast. Not sure the big keys are an asset for little kids (small hands). Makes it difficult to reach the keys for touch typing from the home row.

Support

Product Type:

Mechanical keyboard (ANSI)

Version:

3 (Tri-Mode)

Mechanical Switch Type:

ALPS Type switches

Keyboard Dimensions:

18.7 x 7.0 x 1.1 in (475 x 178 x 29 mm)

Packaging Dimensions:

20.4 x 8.1 x 2.0 in (517 x 206 x 50 mm)

Gross Weight:

3.5 lbs (1,6 kg)

Net Weight:

2.8 lbs (1,3 kg)

Keycap Dimensions:

0.79 x 0.79 in (20 x 20 mm)

Number of Keys:

67 keys

Layout:

• Qwerty, Qwertz, Azerty (varies by language)
• Uppercase font, Lowercase font, Uppercase & lowercase font (varies by language)

Language:

Available in multiple languages

Connection:

Tri-Mode
• Wired: USB-C
• Wireless: Bluetooth® 5.3
• Wireless: SimplyWorks 2.4 GHz (Sold separately)

Wireless Range:

Up to 33 feet (10 meters)

LED Lights:

RGB Lights

Spill-proof:

✔

Chargeable:

✖

Batteries:

2x AA batteries (not included)

OS Compatibility:

Windows®, macOS®, Linux®, ChromeOS®, iOS® and Android®

Warranty:

2 Years (with normal use)

What’s in the box:

• Clevy Keyboard 3
• Card for User Manual & Safety Instructions
• USB-C to USB-A cable (5 ft 10.9 in / 1,8 meters)

Clevy Contrast Keyboard 2 does not have firmware updates

Released at: 01-10-2026

Clevy (Contrast) Keyboard - Standard Layout (3) - Firmware update

VERSION: 1.5.0

Released at: 01-10-2026

Clevy (Contrast) Keyboard - Scandinavian (3SC), Arab (3AR) & Russian (3RU)- Firmware update

VERSION: 1.5.0

CHANGES

  • Fixed a Bluetooth issue when using the keyboard with Android.
  • Separate support for the Scandinavian keyboard layout
    (Clevy Keyboard 3SC).
  • Separate support for the Arabic/Russian keyboard layout
    (Clevy Keyboard 3RU).
  • Integrated ALT DFU trigger support into the HOG module
    to activate firmware update mode.

TECHNICAL DETAILS

  • Added SCANDI layout support to the ALT Settings module:
    d3d1791, 8ff7815.
  • Integrated ALT DFU trigger support into the HOG module:
    77d9b19, 9a9b67b.

Clevy (Contrast) Keyboard 3 – Manual 

Multi-language

Clevy (Contrast) Keyboard 3 – Safety Instructions

Multi-language

Declaration of Conformity (DoC)

English

Hilfsmittel Documentation Germany

German

Clevy Keyboard 2 Manual – USB [ENG]

664 kb

Clevy Keyboard 2 Manual – Bluetooth [ENG]

732 kb

Clevy Keyboard 2 Manual – SimplyWorks RF [ENG]

738 kb

Clevy Keyboard 2 Safety Instructions – [ENG]

176 kb

Clevy is sold through many partner webstores worldwide. Visit the Where to Buy page to find a reseller that ships to your country.

If you tell us your country, we can help you find the best option.

Clevy (Contrast) Keyboard 3 Tri Mode supports wired and wireless connections:

  • USB-C wired connection
  • Bluetooth 5.3 wireless connection
  • SimplyWorks 2.4 GHz wireless connection

Note: USB-C and Bluetooth work right out of the box. SimplyWorks hardware is built in, but activation depends on a firmware update.

SimplyWorks is a 2.4 GHz wireless connection designed for assistive technology setups.

It requires a SimplyWorks RECEIVE unit, which is sold separately.

Note: SimplyWorks on the Clevy Keyboard becomes available after a firmware update.

Yes. The keyboard works as any standard keyboard, so it does not require drivers.

It is compatible with Windows, macOS, Linux, and ChromeOS. Bluetooth also works with iOS and Android devices that support external keyboards.

For USB-C wired use, no batteries are needed.

For wireless use, the keyboard uses 2 AA batteries. Batteries are not included. Alkaline batteries are recommended.

No. The wireless modes use 2 AA batteries and are not rechargeable.

Follow these steps:

  1. Insert 2 AA batteries
  2. Set the wireless mode switch on the back of the keyboard to BT.
  3. Open Bluetooth settings on your computer or tablet and search for devices.
  4. If pairing does not start automatically, briefly press the pairing button on the back using a pen tip.
  5. Select Clevy KB3 and follow the prompts on your device.

Tip: Pairing mode stays active for about 3 minutes.

Use the Bluetooth pairing troubleshooter in the Manual.

If it still does not work, contact us via the contact form and mention your Windows version.

Yes. You can connect via Bluetooth.

The keyboard also supports an iPad mode with built in shortcuts. You can switch modes using the shortcuts described in the manual.

Wireless range is up to 10 meters in typical conditions.

Clevy Keyboard 3 is available in the multicolor version.

For higher contrast, there is the Clevy Contrast Keyboard 3 – Tri Mode in black and white or yellow.

We regularly work on new layouts and we are open to suggestions.

If you tell us your language and preferred layout, we can advise what is available and what may be planned.

Clevy Keyboard is designed for accessible typing:

  • Significantly larger keycaps with large, high contrast characters that are easier to see and target
  • A simplified, structured layout with clear spacing and color coding to reduce visual clutter and typing errors
  • Mechanical tactile switches that provide clear physical feedback with every key press, helping users know when a key is activated
  • A built in switch to disable key repeat, preventing unwanted repeated characters when a key is held down
  • Built in assistive modes such as Sticky Keys, Input Detection, Function Keys Tool, and ABCDE layout support, all controlled directly from the keyboard without software
  • Spill management design with drainage holes to reduce damage from accidental spills
  • Multiple connection options in one device, including USB-C, Bluetooth, and SimplyWorks RF
  • Native support for computers, tablets, and assistive technology setups without installing drivers
  • Optional assistive accessories such as a keyguard and a silicone cover for extra protection and accuracy

Aside from the different colored keycaps and fonts, there are no differences between the Clevy Keyboard 3 and Clevy Contrast Keyboard 3.

The keyboard is durable, but it is not waterproof and has no IP rating.

For disinfecting, use isopropyl alcohol 70 to 90 percent on a soft cloth.

Avoid harsh solvents such as acetone.

For higher risk environments, a silicone cover can add extra protection.

Follow these steps:

  1. Disconnect USB power and switch the keyboard off.
  2. Remove the AA batteries.
  3. Let liquid drain through the drainage holes.
  4. Air dry for 24 to 48 hours.
  5. If problems remain, contact support.

Press ‘ALT’ + ‘ALTGR’ + ‘R’ to reset Bluetooth and SimplyWorks connections and restore keyboard settings to default.

Clevy Keyboard 3, a USB-C to USB A cable, and a QR card linking to the user manual and safety instructions.

2 years under normal use.

Yes. Tell us who will use it and where it will be used, for example at home, in school, or in a care setting.

Then we can suggest the right keyboard version and accessories such as a keyguard or silicone cover.

Request a price list

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Have questions about purchasing?

Have a look at our “Where to buy” page to find the nearest reseller in your country or contact us directly at info@altproducts.com to request a price list

Prefer to email us directly?

Prefer calling us?

We are available from 09:00 to 17:00, Central European Time (CET).

Other Clevy products

The Clevy Keyboard can be paired with our other educational accessories to complete the package. These products are to be purchased separately.

Clevy Keyboard 2 Lowercase US international top view

Clevy Keyboard 2 – USB

Clevy Dyscover

Clevy Cover

Clevy Keyguard 3